Provide an appropriate response.A student argued that it is impossible to use the substitution method to determine if a system of equations has no solution or an infinite number of solutions. Is the student correct?
Fill in the blank(s) with the appropriate word(s).
No
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Solve the problem.Find 5% of $500.
A. $25 B. $2.50 C. $0.25 D. $250
Find the Cartesian product or cardinal number as requested.A = {4, 3, 8, 7}B = {0, 1}Find B × A.
A. {(0, 4), (0, 3), (0, 8), (0, 7), (1, 4), (1, 3), (1, 8), (1, 7)} B. {(4, 0), (3, 0), (8, 0), (7, 0), (4, 1), (3, 1), (8, 1), (7, 1)} C. {0, 1, 4, 3, 8, 7} D. {(4, 0), (4, 1), (3, 0), (3, 1)}
Estimate the value of the quantity.The table gives dye concentrations for a cardiac-output determination. The amount of dye injected was 
Plot the data and connect the data points with a smooth curve. Find the area under the curve using rectangles. Use this area to estimate the cardiac output.
Dye concentration (mg/L)
Time (sec)
A. 18.9 L/min B. 9.4 L/min C. 381.6 L/min D. 0.2 L/min
Solve the problem.Find parametric equations for the normal line to the surface 
at the point 
A. 
B. 
C. 
D. 
